Nb2Fe14B/MWCNTs hybrids with Rambutan-like structure for efficient microwave absorption

• Published in: Journal of alloys and compounds Vol. 1003; p. 175615
• Main Authors: Jiang, Wenxi, Zhou, Yi, Fan, Benhui, Zhong, Zhengyu, Yue, Jianling, Wang, Peisheng, Liu, Yu, Huang, Xiaozhong
• Format: Journal Article
• Language: English
• Published: Elsevier B.V 25.10.2024
• Subjects: CNTs; CVD; Microwave absorption; Nb2Fe14B; CVD; Microwave absorption; Nb2Fe14B; CNTs
• ISSN: 0925-8388
• DOI: 10.1016/j.jallcom.2024.175615

To avoid the potential danger of electromagnetic waves from electronic devices, there’s an urgent demand to develop high-performance microwave absorbers. In this work, we presented Nb2Fe14B and multi-wall carbon nanotubes (MWCNTs) hybrid particles with a rambutan structure synthesized by chemical vapor deposition. Mixed the hybrid particles and paraffin with different contents, the composites could have an excellent absorption performance because of the synergistic effects of MWCNT and Nb2Fe14B. The best reflection loss (RL) of the composite with 20.wt% content and 4.5 mm thickness could reach − 47.4 dB at 4.7 GHz. The composite with 25.wt% content and 2 mm thickness also had a RL of –40.7 dB at 12.5 GHz. •Hybrids of Nb2Fe14B with MWCNTs were successfully synthesized by chemical vapor deposition.•The best performance was achieved by Nb2Fe14B/MWCNTs/paraffin-20 % with a minimum reflection loss of − 47.4 dB at 4.7 GHz.•The rumbutan-like structure was successfully synthesized by chemical vapor deposition.